Selected answers from the Dumb SEO Questions G+ community.
Suresh Kumar: Continuation Horror Panda 4.2: ; Please check the image. That's what I got form Search Console so far and it's on 29th of July..!
Suraj Gadage: ;There could be a number of reasons that might cause the Googlebot from not being able to access. In your case I believe it could be because of two reasons:
1. Traffic congestion and intermittent server issues at your end (99% of the time) or at Google’s end (yes, but very rarely only 1%)
2. Problem in the server level configuration file (other webmasters have faced the same problem when they had some problem with their server level configuration file. ;
Albeit, Google is already recommending you certain action steps to take and hopefully that should resolve the problem.
Suresh Kumar: But I couldn't understand the reason behind De Indexing all my pages leaving some as is? Explain me in detail please...! I reinstalled a new free theme and I'm going reset the website with good navigation ; and Optimizing all the images and minimizing script sizes at possible..!
Suraj Gadage: Did you check your webpage source code? On all pages of the website you have added <meta> tag to block search engines from indexing the website pages. Check this image: ; I believe this could be the reason.
Suresh Kumar: Oops! I have to recheck the website. You are saviour. I'll look into it. ;
PromozSEO: Please check your site's DNS. Check if you got any info at 'Crawl Errors' section under Search Console. Most probably there is a DNS error or other server related issues. Also see, if you have exhausted your monthly bandwidth quota. Do check your robots.txt file too